How to unlock the true flavor of plant-based cheese?

The market for plant-based cheese is growing rapidly, but many consumers still describe these products as lacking the familiar taste and texture of traditional cheese. With muted flavors, beany notes, and a grainy mouthfeel, the sensory experience of plant-based cheeses often falls short. While plant-based cheese offers clear sustainability advantages and responds to a strong market need, overcoming these flavor and texture challenges is critical to achieve broader consumer acceptance. In this article we propose a simple and natural solution: adding the missing short chain fatty acids components, which can now be derived by fermentation of agri-food residues.

The shift to plant-based: more than just a trend

In recent years, consumer preferences have increasingly shifted toward sustainable and health-conscious food choices. Rising awareness of food security, the climate crisis, and personal well-being has driven a rise in flexitarian and plant-based diets, often motivated by environmental, ethical, and health considerations.

This shift in lifestyle is especially strong among Gen Z and Millennials, with around a third identifying with plant-based or reduced-meat diets¹ (see Figure 1).

Figure 1 Dietary lifestyle across  generations (adapted from ¹)  

As a result, the market for plant-based alternatives has been expanding rapidly. In Europe, patents for alternative proteins have grown by 960% over the past decade ², reflecting a surge of innovation in this space. Plant-based cheese, in particular, has shown impressive growth across major European markets, with some countries reporting sales increases of over 100% between 2021 and 2023. Total annual sales have reached over €10 million in Italy, France, and the Netherlands, and €139 million in Germany ³, signaling a robust and growing demand for these products (see Figure 2).

Figure 2: Plant-based food market trends between 2021 and 2023 – adapted from ³.

R&D investments to achieve progress in processing, formulation, and flavor are continuously ongoing. Yet, replicating the taste and texture of traditional dairy cheese remains a key challenge. The demand for high-quality, flavorful plant-based cheese continues to grow, and overcoming flavor challenges is essential to broader consumer acceptance and possibly boost growth even further.

The aroma behind cheese: Butyric and Caproic Acid

Short- and medium-chain fatty acids (less than 12 carbon atoms) are quite volatile and have a low olfactory detection threshold compared to longer fatty acids present in cheese, making them crucial to cheese’s recognizable aroma.

Of these fatty acids, butyric (C4) and caproic (C6) stand out due to their characteristic contributions to cheese flavor:

• Butyric acid (C4) gets its name from butter (butyrum in Latin), where it’s found in concentrations ranging from 2% to 4%. It contributes to the buttery, fatty, and rancid aroma in cheese.
• Caproic acid (C6), named after the Latin word for goat (capra/caper), is more concentrated in goat milk than in cow’s milk and plays a key role in delivering the sharp, tangy aroma of goat cheese and blue cheese.

Concentrations of C4 and C6 in cheese can vary widely. Generally, milder cheeses contain lower amounts of these free fatty acids compared to stronger cheeses, such as aged, blue, and goat cheese. Concentration ranges of C4 and C6 fatty acids in some common cheeses are reported in Table 1.

Table 1: Concentration ranges of C4 and C6 fatty acids in some common cheeses, expressed in mg/100 g of cheese.

C4 and C6 presence in cheese during fermentation is also essential for the formation of esters such as ethyl hexanoate and ethyl butyrate, which contribute to flavor and smell in Dutch-, Swiss- and Italian-type cheeses, as well as in goat- and sheep-milk cheeses and Cheddar.  

The flavor gap in plant-based cheese

Free fatty acids (FFAs) play a critical role in cheese flavor development. In dairy cheese, FFAs result from milk fat hydrolysis via lipases and esterases present in milk, rennet, or bacterial cultures. These enzymes produce FFAs, ranging from butyric acid (C4) to arachidic acid (C20). FFAs not only contribute to aroma but also serve as precursors for esters, methyl ketones, lactones, and secondary alcohols formed during cheese aging.

Unlike dairy cheese, most commercially available plant-based cheeses lack the enzymatic transformations that produce key flavor compounds. Instead, they rely on ingredients like oils and starches, which mainly serve textural purposes and contribute little to flavor due to the absence of C4 and C6 fatty acids. As a result, they miss the complex flavor compounds that naturally develop in traditional cheese, often leading to a bland or one-dimensional taste profile.

Natural flavor innovation for plant-based cheese

Traditionally, butyric (C4) and caproic (C6) acids are industrially sourced from animal fat, palm and coconut oil, or petrochemicals, each with its own environmental and ethical concerns, including high CO₂ emissions and deforestation.

However, thanks to advancements in biotechnology, these fatty acids can now be produced through non-GMO microbial fermentation or enzymatic processes, making them suitable for plant-based cheese formulations.

In plant-based cheese, C4 and C6 can enhance flavor in two main ways:

• Direct Flavoring – These acids can be added as flavoring agents to mimic the pungent and creamy notes of dairy cheese.
• Fermentation Precursors – In fermented plant-based cheeses, glycerol esters of C4 and C6 can be added as precursors. During fermentation, these compounds break down into free fatty acids and can also form characteristic cheese aroma molecules, such as ethyl butyrate and ethyl hexanoate.

A notable innovation in this area is the use of agri-food residues such as potato peels as feedstock for fermentation processes. This approach not only reduces food waste but also provides a renewable and ethical source of C4 and C6, with a significantly lower environmental footprint.

Companies like ChainCraft use this technology to produce high-purity, plant-based fatty acids (SensiCraft® 4 and 6), offering the industry a sustainable way to enhance the flavor of plant-based cheeses without compromising on ethics or taste.

Curious to learn more about how sustainable fatty acids can enhance your formulations? Get in touch with the ChainCraft team at sales@chaincraft.com. We are happy to share insights and explore opportunities together.

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